•1302395 九、發明說明： 【發明所屬之技術領域】 & _關於_種風扇系統及其保護方法。 【先前技術】 是由二ί區2係揭示了 一種習知的風扇系統1，其主要 至少一風=〇=、一電容器Ci、至少一保護元件20及 一電源供廡哭〇斤、、且成；其中該驅動電路10係電性連接於 所紅成'，二;且其係由一開關元件11及一驅動元件12 而盆另_ = = Cl之—端係電性連接於該驅動電路10， 風^ 3〇 接於接地端’該些保護元件20與該些 3器2與ϊΐ二中該電源 開啟時，關牛11的開啟或關閉，當該開關元件? m f電m儲存完成後，提供電壓及ΐίΐ1 二二保濩兀件20及該些風扇30，而當有任—机輪入 ^短路之情形（例如風扇内部線材表 =30發 中之鐵件），若軸㈣元件2Q (通f實施先 能立即燒斷而與短路事件作一隔離，當能達 糸） 驅動電路10及後級該些風扇30 ;惟事實上，因、級該 護元件20乃為被動型的保護元件，若短路情形未些保 保護元件20燒斷，此時因為該驅動元件12 /所^『該些 電流偵測裝置（圖中未示）會持續偵測到此—短=之一 該驅動電路10就會因為該短路事件無法解除而卷畢件’ 時將該開關元件11關閉，導致後級所有風扇3〇§機’並同 止運轉 5 1302395 、’此^該風扇^統i所負責散熱的負載會因散熱不足而無 法運作’ 全部停擺當機或達到過熱毁損的結果: 【發明内容】 有鑑於上述課題，本發明之目的為提供一種包含有主 動型保護功能的風扇系統及其保護方法，其係可於短路情 形發生時，強制該些保護元件燒斷或失效，而不致有誤 斷及誤反應的情況產生。 ^ 緣達上述目的，本發明係揭示一種風扇系統， 該巧扇系統係電性連接於一電源供應器，且接收該電源供 應器所產生之一電源。該風扇系統主要是由至少一驅動電 路、一保護電路、至少一保護元件及至少一風扇所組成， 其中該，動電路係電性連接於該些風扇，且該驅動電路係 可接收該m驅動該些風扇，該些㈣元件係對應 地電性串聯連接於該些風扇，且其一端係共同地連接於該 ^動電路，該倾電路係電性連接於該些㈣元件與該驅 動電路之間，且其輸出電流值於該些風扇其中之—發生短 路情形時大於對應該風扇之該賴元狀—限隸，藉此 ，，保護70件將失效以令該風扇無法再取得電源，而停止 錄動。 ^達上，目的，本發明更提供一種風扇系統之保護方 ^ ’該風扇純主要是由—轉電路、—㈣電路、至少 =護元件與至少—風扇所組成’該驅動電路係可驅動該 二羽，轉’該保護電路係電性連接於該驅動電路與該些風 扇該些㈣元件係對應地電性串聯連接於該些風扇 端㈣同地電性連接於姉護電路，而該保護方 ίϊϊ!ί該些保護兀件的一限流值選擇該保護電路之該輸 ϋ 該?出電流值於該些風扇其中之一發生短路 月 >時大於對應該風扇之該保護元件之該限流值；藉上述 1302395 請再參閱圖3所示，於本實施例中，該保護電路50係 由數個電容器C2並聯而成，且因此形成為一具有大電容值 的保護電路50，如此一來，當任一分支路徑產生短路情形 時，因為短路路徑的阻抗最小，故該保護電路50所輸出的 電流幾乎全部流向該短路路徑，且因為大電容值所產生的 大電流的特性，故能強迫該保護元件60燒斷或失效，而令 該分支路徑的風扇70停止運轉。 值得注意的是，該短路路徑的斷路，不致使其他分支 路徑受到影響，因此該保護電路50之輸出電流可繼續分配 給其他分支路徑以令該些風扇70運轉，該風扇系統3的散 熱效果不致因此消失，一來不致使得該驅動電路40因為電 流的異常而當機，二來更有效地維持該風扇系統3整體的 運作順暢性。 另外，本發明藉由令該短路路徑立即斷路的特性，在 反應速度上係快於該驅動元件42中所設置之一電流偵測 裝置（圖中未示）的偵測反應時間，如此一來即可確保該 驅動元件42不會因為任一分支路徑短路即令該開關元件 41關閉，而使得後級該些風扇70無法再提供散熱之功效 〇 請再參閱圖4所示，本發明之該風扇系統3中該驅動 電路40係可由軟體加硬體架構以構成。其中該開關元件 41為一電晶體Qi，特別是實施為一 N通道MOSFET;而該驅 動元件42主要包括有一積體電路晶片1C’該積體電路晶 片1C係可接收該電源供應器2所產生之該電源，藉以控制 該開關元件41之開啟或關閉。 請再參閱圖5所示，本發明之該風扇系統3中該驅動 電路40係可實施為一軟啟動電路。其中該開關元件41為 一電晶體Q2，在此實施為一 P通道MOSFET ;而該驅動元件 42則主要是由電阻R!〜Rs、二極體Di〜D〗、電晶體Q3、電 1302395 容器C3等主被動元件所構成，該驅動元件42接收該電 應器2所產生之該電源且使該電晶體q3開啟時，即 該電晶體^開啟。 』控制 綜上所述:因依本發明之—種風扇系統及其保 ，該風扇系統係可於任一分支路徑產生短路情形下，二 該保護電路以強制該保護元件燒斷或失效，而該，由 的保護方法，係包括了選用可輸出大於該保護元 的電流的保護電路，如此即可在任一分支路徑短=〜值 即將該保護元件燒斷或失效，而令該產生短路情形 路徑不致，響其他分支路徑的正常運作，並更進一步地念 保該風扇系統的散熱功效。 以上所述僅為例示性，而非為限制性者。何未脫離 本發明之精神與範鳴，而對其進行之等J 均 應包含於後附之申請專利範圍中。欢修改或k 【圖式簡單說明】 圖1為習知風扇系統之組成示意圖。 圖2為本發明風扇系統之組成示意圖。 圖3為圖2風扇系統中該保護電路實施示音 圖4為圖2風雇系統中該驅動電路之實（一）。 圖5為圖2風扇系統中該驅動電路:二)。 【主要元件符號說明】 1 風扇糸統 2 電源供應器 10 驅動電路 11 開關元件 12 驅動元件 20 保護元件 30 3 風扇 風扇糸統 Cl 電容器 40 驅動電路 41 開關元件 9 ⑧ 1302395 42 驅動元件 60 保護元件 Qi〜Q3電晶體 DrD4二極體 1C 積體電路晶片 50 保護電路 70 風扇 Ri〜R5電阻器 Cl〜C3電容器• 1302395 IX. Description of the invention: [Technical field to which the invention pertains] & _About the fan system and its protection method. [Prior Art] A conventional fan system 1 is disclosed by the 2nd system, which is mainly composed of at least one wind=〇=, a capacitor Ci, at least one protection component 20, and a power source for crying, and The driving circuit 10 is electrically connected to the red, and is electrically connected to the driving circuit by a switching element 11 and a driving element 12. 10, the wind ^ 3 〇 connected to the ground end 'the protection element 20 and the 3 2 and 2 when the power is turned on, the turn off 11 is turned on or off, when the switch element ? mf electric m is stored , providing voltage and ΐίΐ1 22 protection member 20 and the fans 30, and when there is any machine-wheeling short-circuit (such as the fan internal wire table = 30 iron pieces), if the shaft (four) component 2Q (The implementation of the current f can be immediately blown and isolated from the short-circuit event, when it can reach 驱动) the drive circuit 10 and the fans 30 in the latter stage; in fact, the protection element 20 is passive protection. If the component is short-circuited, the protection component 20 is not blown. At this time, because the driver component 12 / The flow detecting device (not shown) continuously detects this - short = one of the driving circuit 10 will be turned off when the short circuit event cannot be released, and the switching element 11 is turned off, resulting in all subsequent stages The fan 3 〇 机 machine 'and the same stop operation 5 1302395, 'this ^ the fan ^ system i is responsible for the heat dissipation of the load will not be able to operate due to insufficient heat dissipation' all the lockouts or the result of overheating damage: [Summary] In view of the above problems, an object of the present invention is to provide a fan system including an active protection function and a protection method thereof, which can forcibly burn or disable the protection components when a short circuit occurs, without causing a fault and A situation of mis-reaction occurs. In order to achieve the above object, the present invention discloses a fan system electrically connected to a power supply and receiving a power source generated by the power supply. The fan system is mainly composed of at least one driving circuit, a protection circuit, at least one protection component and at least one fan, wherein the dynamic circuit is electrically connected to the fans, and the driving circuit can receive the m driving In the fan, the (four) components are electrically connected in series to the fans, and one end thereof is commonly connected to the circuit, and the tilt circuit is electrically connected to the (four) component and the driving circuit. And the output current value of the fan is greater than the corresponding one of the fans when the short circuit occurs, whereby the protection 70 will fail to make the fan no longer obtain power. Stop recording. To achieve the purpose, the present invention further provides a protection system for a fan system. The fan is mainly composed of a circuit, a circuit, at least a protection component and at least a fan. The drive circuit can drive the fan circuit. And the protection circuit is electrically connected to the driving circuit, and the plurality of components of the fan are electrically connected in series to the fan terminals (four) electrically connected to the protection circuit, and the protection is The voltage value of the protection element selects the output of the protection circuit, and the current value is greater than the protection element of the corresponding fan when the one of the fans is short-circuited. The current limiting value is as shown in FIG. 3, and in the embodiment, the protection circuit 50 is formed by a plurality of capacitors C2 connected in parallel, and thus formed as a protection circuit 50 having a large capacitance value. In one case, when any branch path generates a short circuit condition, since the impedance of the short circuit path is the smallest, almost all of the current output by the protection circuit 50 flows to the short circuit path, and a large current due to a large capacitance value is generated. Characteristics, the protective element 60 can force the blown or failure, and the branch path so that the fan 70 is stopped. It should be noted that the short circuit of the short circuit path does not affect other branch paths, so the output current of the protection circuit 50 can continue to be distributed to other branch paths to operate the fans 70, and the heat dissipation effect of the fan system 3 is not improved. Therefore, it disappears, so that the drive circuit 40 does not cause an abnormality due to an abnormality of the current, and the operation smoothness of the entire fan system 3 is more effectively maintained. In addition, the present invention is faster in response speed than the detection reaction time of a current detecting device (not shown) provided in the driving component 42 by the feature that the short-circuit path is immediately broken. It can be ensured that the driving element 42 does not short-circuit any of the branch paths, so that the switching element 41 is turned off, so that the fans 70 of the latter stage can no longer provide heat dissipation. Please refer to FIG. 4 again, the fan of the present invention. The drive circuit 40 in system 3 can be constructed from a software plus hardware architecture. The switching element 41 is a transistor Qi, especially implemented as an N-channel MOSFET; and the driving component 42 mainly includes an integrated circuit chip 1C'. The integrated circuit chip 1C can receive the power supply 2 The power source controls the opening or closing of the switching element 41. Referring to FIG. 5 again, the driving circuit 40 of the fan system 3 of the present invention can be implemented as a soft start circuit. The switching element 41 is a transistor Q2, which is implemented as a P-channel MOSFET; and the driving element 42 is mainly composed of a resistor R!~Rs, a diode Di~D, a transistor Q3, and an electric 1302395 container. A main passive component such as C3 is provided. When the driving component 42 receives the power generated by the electrical device 2 and turns on the transistor q3, the transistor is turned on. 』Controlling: According to the invention, the fan system and the protection thereof can be used in any branch path to generate a short circuit, and the protection circuit forcing the protection element to be blown or failed. The protection method includes selecting a protection circuit capable of outputting a current greater than the protection element, so that the protection element can be blown or failed in any branch path short=~ value, and the short circuit condition path is generated. No, it will ring the normal operation of other branch paths, and further protect the heat dissipation effect of the fan system. The above is merely illustrative and not limiting. It is to be understood that the spirit of the present invention and the scope of the present invention are included in the scope of the appended claims. Huan modification or k [Simplified description of the drawings] Figure 1 is a schematic diagram of the composition of a conventional fan system. 2 is a schematic view showing the composition of a fan system of the present invention. 3 is a schematic diagram of the protection circuit of the fan system of FIG. 2. FIG. 4 is a schematic diagram of the driving circuit of the wind-employed system of FIG. Figure 5 is the drive circuit of the fan system of Figure 2: b). [Main component symbol description] 1 Fan system 2 Power supply 10 Drive circuit 11 Switching element 12 Drive element 20 Protection element 30 3 Fan fan system Cl Capacitor 40 Drive circuit 41 Switching element 9 8 1302395 42 Drive element 60 Protection element Qi ~Q3 transistor DrD4 diode 1C integrated circuit chip 50 protection circuit 70 fan Ri~R5 resistor Cl~C3 capacitor